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Some notes on underground transportation in metal mines
| Author: | Jackson, C. F. |
|---|---|
| Year: | 1931 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6326 (Revised) |
| Subject: | Mining machinery |
| Link: | https://hdl.handle.net/2027/mdp.39015077576075 |
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